Telephonic apparatus.



no MODEL.

PATBNTED APR.'28, 1903.. F. W. WOOD. TELEPHONIG APPARATUS.

APPLICATION FILED AUG.'7. 1902,

- 2 SHEETS.SHEET 1.

maxim No. 726,886. PATENTED Apnkza, 1903.

I F. W. WOOD. A

TBLEPHONIG APPARATUS.

APPLICATION FILED AUG. 7, 1902.

N0 MODEL. I 2 SHBBTS- SHIFET 2.

I Ill/I THE mmms Psrzns 5a., wummrrnn, m c,

FRANK W. Woon,

PATENT OFFICE.

or NEWPORT NEWS, IRGINIA, Assrenon fro CHARLES CORY & son, on NEW YORK, N. Y.

TEL EPHONIC'-API5A RATUS'.

SPECIFICATION forming part of Letters Patent No. 726,836,dated-Apri1 28, mos.

Application filed August 7.1902. sen-nut. 118.824. some.)

To all whom it may concern:

Be it known that I, FRANK W; WOOD, a citizen of the United States, residing at NewportNews,in the county ofWarwick and State of Virginia, have invented new and useful Improvements in Telephonic Apparatus, of

which 'the following is a specification.

My invention relates totelephonic apparatus, and especially to a form of apparatus designed for 1189 upon vessels where certain contingencies arise and have to be met in the successful useof a telephone which do not present themselves in the, operation of the instrument on land. Two main objections attending the use of an ordinary form of tele-' phone on vessels are, first, the corroding offect'of the damp salt air upon the delicate parts of the receiver and transmitter soon destroys the usefulness of the instrument, and, second, if there be a great deal of noise in the vicinity of the instrument it is yer'y diffiehlt tohear distinctly the words sought to be transmitted. This lattercond ition'mayexist if the instrument be located in the ento the use of telephones o'n shipboard, I have 1' devised the apparatus forming the subjectmatterrof the present application. -Many other.advantages,'h'owever, are afiorded by. my invention which are due both to the spe-. cial construction of apparatus herein-dis closed and to the broad. underlyingp rinciple of the invention, of which such apparatus is to be considered as only one illustration. The

advantages claimed for my invention, however, will be fully set forth in the detailed description. thereof and'need not'be recited in detail at this point.

In a com panion application, filed August 1, 1902, and serially'numbered-117,943, I havepivotally mounted .in opposite ends of the casing in a manner to communicate with the receiver and are adaptedto be raised and lowered to actuate said movable support, and thereby bring the mouthpiece ofthe 'trans- $5 mitterintoorout ofcoincide'nce withtheopen ing in the casing and at; the same time actuate said closure plate to uncover or'cover said opening, as the case may be. The present invention is in the form of an apparatus intended to be secured to a bulkhead and-differs from the construction of apparatus shown in my said application mainly in the essential that the receiver is immovably fixed with- 'inithe casing and the transmitter alone is adapted to be rotated. While the principle of operation, the object sought to be attained, v and the advantages derived in connection with the present invention are all substantiallythe same as obtain with the construe tion of apparatus ofiny'said application, the different arrangement of-t'he receiver involved in the present case. necessarily involves other differences in the form, construction, arrangement, and operation of parts over-what is show; in the prior construction, all of which will more clearly appear in the' detailed description to follow and will 'be specifically indicated in theclaims.

' In addition to the above ,the present case embraces certain novel features of construction not necessarily required by the change in the arrangement of parts from that of the apparatus forming the subject-matterof my pending application, which are to be regarded in the light of additional improvements in this art and among which may be mentioned the provision of two diaphragms in the receiver, which coiiperate" with the respective 'earetubes, and the provision of novel means 'of actual use; to provide a telephone apparatus which shall be strong and durable and one that cannot bereadily damagedor'deranged by the shock of gun fire, impact of one that will permit of location in any part of the ship and enable conversation to be distinctly heard under all conditions of local disturbances or noise; toiprnvlde-forputting the instrument into position foruseflvhich in the form ofiappnratus herein disclosed would include opening the inclosiug casing and turning the transmitter to a 'po'si'tionopposite rho opening in the casing-yin a single movement; to provide for automatically cutting out the instrument and closingthe casing after use; to provide for automatically closing, the BillFblibES after use and when the same are released; to provide for directly or positively rotating the transmitter through the medium of the ear-tubes, so that the car-- 'bon particles in the microphone shall be shaken up each time the instrument is used, thus preventing the granules from packing or cabins, and tinally'to dispense with the ordinary flexible conductors connecting the receiver to the instrument.

' In order that the invention may be clearly understood, if have illustrated the same in the accompanying drawings, in which- Figure l is a central vertical sectional View through the apparatus. Fig. 2 is a longitudinal section on the line 2 2 of Fig. l; and Fig. 3 is a sectional plan view on the line 3 :3 of Fig. 2, the view assuming both ear-tubes to hole the position shown in Fig. 1.

Refeifiingnow to the drawings, 1 indicates a metal casing, preferably rectangular in shape and having a removable front 2, held to the casing by screws 3, and on its rear side too and bottom extensions 4, by means of which it may be secured to the bulkhead through the medium of screws 5; In the upper end of the casing 1 and secured to the rear wall thereof by means of brackets 6 and screws 7 is the receiver 8, which comprises a cylindrical shell 9, having its opposite ends closed by means ofscrewcovers 10, which. clamp between them and the respective ends of the shell two diaphragms 11. Each of these diaphragrns passes across and in close juxtaposition to a central opening formed in each end or cover 10 of the recei er, which openlogs are surrounded by cylindrical eXten-- clone or lhimbles 12, formed integral with the respective covers 10. These thimbles are in the nature of journal-bearings and are adapted to receive snugly the inner ends of extensions 13 of the honor metal curved arms 14: of the eanlubes 15. Each ear-tube 15 is 'pivotallymounted in one side ofthe casing play. The extension 13 extendsto the inner V bottoms of said recesses and fit soniew i.

' ,cxtehsion 13am] secured, hy'means of screws -20,to' the shouldered. portion l7. The flanged portion lfiis of somewhat greater diameter than the opening 18, and consequently will lie against the outer face of the casing. The ringl fi, whlohjja's':shown, is also of greater I diameter than the onening 18, will lie against the inner face of the casing. The connection between the ring 1!), the wall of the casing 1, and tlie'annular flange 16 is very close, but not to such an extent as to cause bindin In otl'ierwords, this ring 19 and flange 16 foronwith theshoulder 17, an annular groove, which receives the edge portion of the opening 18, the shoulder being; journaled in said opening, while the ring and flange operate as the walls of the groove to prevent lateral edge of the opening in the cover 10 and is free to revolve in the thiinble 12.

Secured on each arm 14; is a flexible tube 21, the outer portion of which is of coiled spring-wire 22, the ear-tubes in this respect,

s well as in their entire construction, being the same as shown and described in my companion application aforesaid. In the outer end ofeach tube is secured an earpiece 23, the annular edge surrounding the openingin which is incased in a rubber guard 24. The opposite side walls of the casing 1 are each provided ncarthe bottom of the casing with a depression or recess 25, which recesses are adapted LO receive the rubber-protector 3d of the earpieces which lie flush against snugly in the latter, as shown, being normally held in such position by the spring of the flexible part 21 of the ear-tubes. When lying in these recesses, the opening in the earpieces will be securely sealed to the entrance of moist air by the frictional engage.- ment of the rubber guard 2% with the b0ttoms and sides of said recesses. As a result,

y when in this position no moist air can pass through the ear-tubes to the receiver.

The transmitter shown mounted. below the receiver and is indicated by the numeral 26. Said transmitter comprises a. circular r15 casing 27, having a screw-cover 28, which clamps betweouit and the edge of the easing; a diaphragm 29 in such a manner as to render the casing water and moisture proof.

30 indicates the microphone of the transmitter, hich may be of any preferred construction and is operatively connected'with the diaphragm 29.

Projecting from the cover 28 is the tapering mouthpiece 31. r

At opposite sides of the transmitter are two lugs 32, formed integral with the casing 27 and by means of which the transmitter is secured at opposite sides to two circular disks 33 34, respectively, by screws passed through said disks and screwing into said lugs, the nature of the viewsselected not permitting said screws to be shown. Each of the disks 34 has on its outer side at the usual center a lug 35, which is provided with an outer flat end adapted to lie flush against the inner side of the casing 1 and with a screwthreaded aperture. A screw 36, passed through an opening in the side wall of said casing, is screwed into said aperture and has a head 37 journaled in said opening. A

plate 38, inserted or screwed into a recess of larger diameter than said opening and surrounding the same, serves-as a protection for this journal-bearing. Extending part way .around the peripheries of the disks 3'3 34 is a curved closure-plate 39, which is secured at one end portion only to the edges of said disks by the screws 40, so that the greater portion of said closure-plate is left free or unconnected to the disks 33.34, and thisfree portion of the plate has a tendency to spring away from *said disks, so as to press closely against a smooth bearing-surface afliorded by an annular projection 41, forming part of a mouthpiece 42, secured in the front wall 2 of the casing and afiording the opening 43. As clearly shown by Fig. 2, the closure-plate 39 will operate normally to close the opening 43 securely. In that end or portion of the closure-plate 39 whichis secured to the disks 33 34 is provided an opening-44,.which is of thesame size as the opening 43 and adapted to be brought into coincidence with said opening when the instrument is to'be used.-

The mouthpiece 31 projects outward to the closure-plate 39, of which it may form apart,

if desired, and its opening coincides with the opening 44.

Mounted on the base of the transmitter and extending between the disks 33 34 is a block 45, of insulating material; whichis secured at opposite ends to said disks by means of screws 46. Suitably confined within this block are movable metal contaet-pins47 48,

thepoints of which project outward beyond the edge of the. block. and are normally pressed outward by means of coiled springs 49 -50.' These springs also serve as conductors, the spring 49 connecting the pin 47 with a binding-post 51 on the base of the transmitter, but insulated therefrom, and the spring 50 being electrically connected with the microphone 30. From the binding-post 51 a conductor 52 leads to the diaphragm 29 of the transmitter.

Secured on the inner side of the rear wall' j the receiver are two binding-posts 6O 61. A

conductor 62 connects the binding-posts 58 and 60, and a conductor 63 connects the. binding-posts 56 and 63. From the binding-posts 57 and 59 lead the line-wires 64. Each of the metal strips 53, 54, and 55 is insulated from the casing 1 .by means of suitable insulating material 65, interposed between said strips and the wall of the casing. As shown by Fig.

2', when the telephone is not in. use the contact-pins 47 and 48 are in a position considerably removed from the contact-strips 53 and 54, and of course the circuit through the apparatus is broken. In order to use the apparatus,the contact-pins m ust first be brought int'ocontact with the respective contact-strips 53 54 to close the circuit, and theomouthpiece 31 of the transmitter must be brought opposite the opening 43 in the casing. Both of these results are simultaneously effected at the same time that the ear-tubes are raised to the ears by the following mechanism: On one-ofthe'rings 19 (that shown at the left of Fig. 1) is provided an arm 66, (shown by dotted lines .in Fig. 2,) with the outer end of which. the upper slotted end of a link 67 is pivotally connected by means'of a journal-' screw 68. The lower end of said link is-pivotally connected to the disk 33 a. considerable distance to one side of the center otthe same by a journal-screw 69. This connection can be made with both of the disks 33 34, if de-l' sired. The upper end of the link 67 is slotted, as stated, and this slot 70 permits of a movement of the screw '68 therein withoutv actuating the link 67 ,for a purposeto be presently described. Eachot' the contact-strips too,

5354 is provided about centrally of its length 4 with a shallow recess 71,one of which is shown in Fig. 2, into which the contactpins 47 48 are adapted to spring to arrest the movement of the transmitter.

- The operation of theapparatu sivill now be given, first promisingthat the trt. ns mitter,

with its mouthpiece and microphone, the

block 45, with its contact-pins, the closureplate 39, and thedisks 33- 34 all revolve together as a single structure upon the heads 37, journaled in the side walls of the casing 1 asbearings. To use the telephone, anear" tube 15 is taken in each hand and pressed outward to remove the earpieces 23;outot the recesses 25 and then raised, which move ment of the ear-tubes through the connecdisk 33causes the disks 33 34 to revolve, and this "action is continued until the contactpins 47 48', which will thereby be brought into engagement with the contact-strips 53 54 and pressed inward, spring out into the recesses 71, which will offer sufficient resistance to the further upward movement of the ear-tubes to indicate to the user that the mouthpiece of the transmitter has been brought into coincidence with the opening43 in the front wall of the casing. As the eartubes are raised from their lowermostposition the screw 68 will first rise in the slot 70 and then engage the upper end of said slot tion ofthe link 67 with the arm 66 and the to raise the link 67 and produce the more 7 and a closure for said-opening movable with .said ear-tubes to cover or uncover the open- 9. In a telephone apparatus, a transmitter and a stationary receiver in electrical connection with the line-wires and battery, a casing inclosing the same and having an open ing, movable ear-tubes communicating with said receiver, a movable closure for said opening' adapted to be operated by said ear-tubes, and means for making or breaking the connection with the line-wire and battery in the -movements of said ear-tubes. 10. In a telephone apparatus, a stationary receiver, movable ear-tubes communicating therewith,aseries of insulated contact-strips,

a conductor connecting one of said contact strips with the receiver, a'line-wire connected with the other of said contact strips, a contively, to close or open the circuit through the instrument.

11. -In a telephone apparatus, a casing having an opening, a stationary receiver located within said casing; movable ear-tubes communicating with said receiver,a closure for said opening movable with one ot said eartubes to cover or uncover the opening, and a transmitter also located within said casing and movable with said. ear-tube-to have its mouthpiece brought into' or out of coincideuce, respectively,with said opening at the same timethat the opening -is uncovered or covered by said closure. 0

12. In a telephone apparatus, a casing having an opening, a stationary receiver located "within said casing, movable ear-tubes coming an opening, a movable member located municating'with said receiver, a slida'ble closure-plate for said opening and itself having an opening and movable with one of said can tubes to have its opening brought into or'out of coincidence with the opening in. the casing, a transmitter also located within said casing and movable with said ear-tube and having a mouthpiece disposed opposite to the opening in said closure-plate.

13. In a telephone apparatus, a casing havwithin said casing and carrying a transmitter, a stationary receiver also located withinsaid casing, movable eartubes communicating with said receiver, means connected with one of said ear-tubes for actuatingsaid movable member tobring the mouthpiece of the transmittcr into or out of coincidence with said opening, and means for covering and uncoverin said opening.

it. in a telephone apparatus, a casing having an opening, a rotatable member located within said casing and carrying a transmitter, a stationary receiver also mounted within the casing, pivotally-mounted ear'tubes communicating with said receiver, means connected with one of said ear-tubes for actuating said rotatable member to bring the mouthpiece of with said opening, and means for covering and uncovering said opening.

ing an opening, a rotatable member located Within said casing and carrying a transmitter, a stationary receiver also located within said casing, pivotally-mounted eantubes communicating with said receiver, means connected with one of .said ear-tubes for actuating said rotatable member to bring the mouthpiece of .the transmitter into or out 0-! coincidence with said opening, said ear-tubes having a movementindependentofsaidrotatable memher, and means for covering and uncovering said-opening.

16. Ina telephone apparatus, acasing havwithin said casing and carrying a transmitter',

with one of said ear-tubes for actuating said rotatable member to bring the mouthpiece ofthe transmitter into or out of coincidence with said opening, said ear-tubes having a movement independentofsaid rotatable menu-- her, and meanscarried bysaid movable memberv for covering and uncovering said opening. r

17. Ina telephone apparatus, a casing havwithin said casing and carrying atransm tter,

casing, movable ear tubes communicating with said receiver, means connected with one of said ear-tubes for actuating said movable ,member to bring the mouthpiece of the transmitter into or out of coincidence with said opening, and means carried by said movable member 7 for covering and uncovering said opening.

ing an opening, a rotatable member located within said casing and carrying a transmitter, a stationary receiver also mounted in said casing, pivotally-mounted ear-tubes communicat-ing with said recei er, means connected with one of said ear-tubes for actuating said rotatable member to bring the mouthpiece of the transmitter into or out of coincidence with said opening, and a plate carried by said] rotatable member for covering and uncovering said opening.

19. In a telephone apparatus, a casing having an opening, a rotatable member located ,within said casing and carrying a transmitfer, a stationary receiver also mounted within the casing, pivotally-mounted ear-tubes communicating with 'said receiver, means connec'tedwith one of said can tubes, for actuating said rotatable member te-bringthe mouth piece of the transmitter into or out of coincidence,

15. In a telephone apparatus, a casing hava stationary receiver also located within said casing, pivotally-mounted ear-tubes commu. nicating with said receiver, meansconnected a stationary receiver also located within said ing an opening, a rotatabie member located ICO ing'an opening,a movable member located 18. In a telephone apparatus, a casing havthe transmitter intoor-o'ut of coincidence with said opening, and a plate carried by said rotatable member for covering and uncovering said opening, said plate having a free or unconnected portion adapted to press outward toward said openin 20. In a telephone apparatus, a casing having anopening, a mouthpiece secured in said opening and presenting on the interior oi the casing a concaved bearing-surface,; 1a rotatable member located withinsaid' casing and carrying a transmitter, a stationary receiver also mounted within the casing, pivotallymounted ear-tubes communicating with said receiver, means connected withone of said ear-tubes for actuating said rotatable memher to bring the mouthpiece ot' the transmit t'er into or out of coincidence withthe moutbpiece of the casing, and a curved plate carried by said rotatable member for covering and uncovering the latter, said platehaving a free or unconnected portion adapted to press outward against said bearing-surface.

21. In a telephone apparatus, a casing having an opening, a movable member locsged within said casing andcarrying a trans it- .ter, a stationary receiver also located within said casing, ear-tubes communicating with said receiver, means for actuating saidv movable member to bring the mouthpiece of the transmitter into or out of coincidence with said opening, and means for covering and uncovering said openin 22. In a telephone apparatus, a casing having an'opening, a movable member located within said casing and carrying a transmit-- ter, a stationary receiver also located in said casing, ear-tubes communicating with said receiver, means for actuating said movable member to bring the mouthpiece of the transmitter into or out of coincidence with said opening, meansfor automatically stopping the transmitter in the forms 1 position, and means for covering and u ncoverin g said openlng.

23. In a telephone apparatus, a' casing having an opening, a stationary receiver mounts ed in said casing, ear-tubes communicating with said receiver, a rotatable member also located within said casing and carrying a transmitter, means for actuating said rotatable member to bring the mouthpieceof the transmitter into or out of coincidence with said opening and means carried by said rota-' table memberfor covering and uncovering said opening. f

24. In a telephone apparatus, a stationary receiver, ear-tubes pivotally connected thereto and communicating therewith, a movable member carrying a transmitter and a connectionbetween one of said ear-tubes and.

. said movable member.

25. Ina telephone apparatus, a stationary receiver, ear-tubes pivotally connected thereto and communicating therewith, a movable member carrying a transmitter and. a link connection between one of said ear-tubes and said movable member. 5

26. Ina telephone apparatus, a stationary receiver, ear-tubes pivotally connected thereto and communicating therewith, a rotatable membercarrying a transmitter and a link connection between one of said. ear-tubes and rotatable member carrying a transmitter, and

a link pivotally connected to said rotatable member and having aslotted connection with said pin. 1

29. Ina telephone apparatus, in combination with a casing provided on opposite sides with depressions, and having a closable opening, a transmitter and a receiver mounted in said casing, flexible spring-tubes pivotally mounted in opposite sides of the casing and communicating with said receiver and having a normal tendency to spring toward each other, and earpieces at the outer ends of said tubes adapted to sions. v

30. In a telephone apparatus, acasing having. a closable opening and provided in opposite side walls with depressions, a transmitter and a receiver mountedtherein, tubes pivotally mounted in opposite sides of the casing and communicating with the receiver, and earpieces on the outer ends of said tubes adapted to be received into said depressions.

31. In a telephone apparatus, acasing pro-- vided in opposite sides with depressions, and resilient ear-tubes journaled in said casing; and having earpieces normally acting to enter saiddepressions.

r 32. In a telephone apparatus, a casing in'-- closing a receiver and transmitter and provided in opposite. sides with depressions, and resilient ear-tubes communicating with said receiver and having earpieces normally acting to enter said depressions.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnes'ses. g

FRANK W. WOOD.

Witnesses:

J E. WARREN, G. F. MASON.

be received in said depres= 

